Tube carrier features an ergonomic, lightweight, patented design for optimal comfort and adjustability to fit everyone from the smallest student to the largest. Aluminum belly plate is lighter and stronger than traditional materials to permit infinite torso height adjustment and tow-in adjustment (angle front to back of tubes near the shoulders). Shoulder flexibility is supplied by camber (left and right) and caster (back to front) adjustments. Nylon roller system allows for quiet lift-front capability and quick, easy removal of the instrument from the carrier; and for larger players, negative tilt is available from the special shape of the carrier-side hinge, which is made of strong, lightweight aluminum parts. Comfort Core Cushions use a combination of two different types of foam in insulated cubes for comfortable and self-adjusting support.